T D. A. Cockerdl — Description of Tertiary Insects. 283 



Art. XXX. — Description of Tertiary Insects, VII / by 



T. D. A. CoCKERELL. 



Orthoptera.. 



Tceniopodites geri. nov. (Orthoptera ; Acridiinge). 



Tegmenta long and comparatively narrow ; the inferior (anal) 

 field reduced basally ; the costa rather full, arching near the 

 base as in modern Tcsniopoda; subcostal nervure closely 

 appressed to radial, branching before the middle of the tegmen, 

 the two branches running parallel and extremely close together; 

 radius also with two parallel branches running very close 

 together. Spots round and very distinct, much as in Tmniopoda. 

 Although the spotting of the tegmen is very well preserved, 

 most of the venation is obscure. The question may be raised 

 whether there was not a vein (first subcostal) traversing the 

 costal field as in living Tmniopoda, but not now visible. How- 

 ever, this vein (cf. T varipennis Rehn, Proc. Acad. Nat. Sci. 

 Phila., 1905, p. 405, f. 11) separates the spots of the costal 

 field into two series, one above and one below; in the fossil no 

 such separation is visible, and it is impossible to draw a line 

 which could represent the vein, without passing through some 

 of the spots. The radius is more like that of ordinary Acrid- 

 ians than Tceniopoda. 



Tceniopodites pardalis sp. nov. Figure 1. 



Tegmen about 32 mm long, width 5 mm about 6 mm from base, 

 8 mm about 25 mm from base ; spots as preserved reddish-brown, 

 very distinct, half to l mm broad ; about 18 spots in costal field ; 

 apex of costal arch about 3J mm from base of tegmen. No 

 other parts preserved. 



Hah. — Florissant, Colorado, in the Miocene shales,. Station 

 13 B (1908). The plant Sabina lingumfolia is on the same 

 slab, nearly touching the tegmen. A photograph of the fossil 

 was submitted to Mr. A. N. Caudell, who noted a resemblance 

 to the spotted-winged species of Tropidacris, and also to the 

 genera Zoniopoda and Diponthus. To me the tegmen seems 

 exceedingly like that of Tceniopjoda (a Mexican genus which 

 enters the United States in southern New Mexico), and I 

 believe there is really close affinity. A new generic name is 

 proposed, because the venation is distinctive, and it is impossible 

 to definitely refer the insect to any modern genus without a 

 knowledge of the thoracic and other characters. In the macnla- 

 tion, and in the closely appressed veins, Tceniopodites presents 

 a rather strong superficial resemblance to the Australian 



